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RESTRUCTURING AND RELATED CHARGES - Narrative (Details)
$ in Millions
 1 Months Ended
Aug. 31, 2022
USD ($)
employee
Mar. 31, 2024
USD ($)
Jan. 31, 2023
USD ($)
600 West Chicago      
Restructuring Cost and Reserve [Line Items]      
Option to lease early termination penalty     $ 9.6
2022 Restructuring Plan      
Restructuring Cost and Reserve [Line Items]      
Reduction in number of positions (in employees) | employee 1,150    
Restructuring and related charges, incurred to date   $ 21.2  
2022 Restructuring Plan | Minimum      
Restructuring Cost and Reserve [Line Items]      
Expected restructuring cost $ 22.0    
2022 Restructuring Plan | Maximum      
Restructuring Cost and Reserve [Line Items]      
Expected restructuring cost $ 24.1